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Finding the Fourth Proportional to 11,744.58, 17,616.87 and 5,170.80

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Solution

The fourth proportional to 11,744.58, 17,616.87 and 5,170.80 is: 7,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,744.58 : 17,616.87 = 5,170.80 : x
  2. Step 2: Convert to fraction form
    11,744.58/17,616.87 = 5,170.80/x
  3. Step 3: Cross multiply
    11,744.58x = 17,616.87 × 5,170.80
  4. Step 4: Simplify right side
    11,744.58x = 91,093,311.40
  5. Step 5: Solve for x
    x = 91,093,311.40/11,744.58
  6. Step 6: Final answer
    x = 7,756.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.